arch/all-unix/devs/hostdisk/hostdisk_host.h

   1 /*
   2  * avoid conflicts between our __unused define and the ones that might come in
   3  * via sys/stat.h
   4  */
   5 #undef __unused
   6
   7 #ifdef HOST_LONG_ALIGNED
   8 #pragma pack(4)
   9 #endif
  10
  11 #define timeval sys_timeval
  12
  13 #include <sys/stat.h>
  14 #include <sys/types.h>
  15
  16 #undef timeval
  17
  18 #pragma pack()
  19
  20 typedef int file_t;
  21
  22 #define INVALID_HANDLE_VALUE -1
  23
  24 /* Android is not a true Linux ;-) */
  25 #ifdef HOST_OS_android
  26 #undef HOST_OS_linux
  27 #endif
  28
  29 #ifdef HOST_OS_linux
  30 #define LIBC_NAME "libc.so.6"
  31 #else
  32 #endif
  33
  34 #ifdef HOST_OS_darwin
  35 #define LIBC_NAME "libSystem.dylib"
  36 #define DISK_DEVICE "/dev/disk%ld"
  37 #define DISK_BASE   0
  38 #endif
  39
  40 #ifndef LIBC_NAME
  41 #define LIBC_NAME "libc.so"
  42 #endif
  43
  44 #ifndef DISK_DEVICE
  45 #define DISK_DEVICE "/dev/hd%lc"
  46 #define DISK_BASE   'a'
  47 #endif
  48
  49 /* AROS includes don't define struct stat64, this shuts up warning when compiling host-independent part */
  50 struct stat64;
  51
  52 struct HostInterface
  53 {
  54     int            (*open)(char *path, int oflag, ...);
  55     int            (*close)(int filedes);
  56     ssize_t        (*read)(int fildes, void *buf, size_t nbyte);
  57     ssize_t        (*write)(int fildes, const void *buf, size_t nbyte);
  58     int            (*ioctl)(int d, int request, ...);
  59 #ifdef HOST_LONG_ALIGNED
  60     off_t          (*lseek)(int fildes, unsigned long offset_l, unsigned long offset_h, int whence);
  61 #else
  62     off_t          (*lseek)(int fildes, off_t offset, int whence);
  63 #endif
  64     int           *(*__error)(void);
  65 #ifdef HOST_OS_linux
  66     int            (*__fxstat64)(int ver, int fd, struct stat64 *buf);
  67     #define fstat64(fd, buf) __fxstat64(_STAT_VER, fd, buf)
  68 #else
  69     int            (*fstat64)(int fd, struct stat64 *buf);
  70 #endif
  71     int            (*stat64)(const char *path, struct stat64 *buf);
  72 };
  73
  74 #ifdef HOST_LONG_ALIGNED
  75 /*
  76  * Somewhat dirty hack to adjust data packing to iOS ARM ABI.
  77  * Perhaps this can be done in a cleaner and more CPU-abstract way.
  78  * FIXME: Always assuming little-endian CPU
  79  */
  80 #define LSeek(fildes, offset, offset_high, whence) hdskBase->iface->lseek(fildes, offset, offset_high, whence)
  81 #else
  82 #define LSeek(fildes, offset, offset_high, whence) hdskBase->iface->lseek(fildes, (UQUAD)offset | (UQUAD)offset_high << 32, whence)
  83 #endif
  84
  85 struct HostDiskBase;
  86
  87 /* This routine is specific to a particular UNIX variant */
  88 ULONG Host_DeviceGeometry(int file, struct DriveGeometry *dg, struct HostDiskBase *hdskBase);